Mechanism for feeding angular-formed blanks.



Patented Sept. 3, 1912.

s snsms snnm 1.

B. F. RINDFLEISGH.

i i i APPLICATION FILED SBPT.9, 1911.

I MECHANISM FOR FEEDING ANGULARTORMED BLANKS.

' B. F. RINDFLEISGH. MECHANISM FOR FEEDING ANGULAR FORMED BLANKS.

APPLICATION FILED SEPT. 9, 1911.

Patented Sept. 3, 1912.

3 SHEETS-SHEET 2.

B. P. RINDFLEISOH.

MECHANISM FOR EEEDING ANGULAR FORMED BLANKSF APPLICATION FILED SEPT.9,1911.

1,037,320. Patented Sept: 3,1912.

3 SHEETSHSHBET 3.

UNITED STATES PATENT OFFICE.

BENJAMIN IF. ItINDFLE ISCH, OF CLEVELAND, OHIO, ASSIGNOR TO THENATIONAL- ACME MANUFACTURING COMPANY, OF CLEVELAND, OHIO, A CORPORATIONOF OHIO.

MECHANISM FOR FEEDING ANGULAR-FORMED BLANKS.

Specification of Letters Patent.

To all whom it may concern: Be it known that I, BENJAMIN F. BIND.-FLnIs'oH, a citizen of the United States, residing at Cleveland, in thecounty of Cuyahoga and State of Ohio, haveinvented certain new anduseful Improvements in Mechanism for Feeding Angular-Formed Blanks, ofwhich the following is a specification.

This invention relates to metal working machines, the object of theinvention being to provide a mechanism for feeding angularshaped blanksor pieces, such as hexagon, square, octagon or other angular-formedblanks, from a normally stationary spindle to a live spindle, theinvention being shown applied to an automatic multiple spindle machine,whereby each live or' rotating spindle may be fed or supplied with ablank at a predetermined time as it is brought into position by theindexing of" the turret, without stoppage of the spindle. In a machineof this general character it has usually been necessary to successivelystop the live spindles of the turret in order to feed angular-formedblanks thereto. In the present improvement, however, such blanks are fedto the live or, rot 'at-ihgspindlesof the turret without the stoppage ofthe spindl'es.

In the drawings accompanyingand forming part of this specification,Figure 1 s a side elevation of this improved multiple spindle machinehaving the present 11nprovelnent applied thereto; Fig. 2 is a top viewthereof; Fig. 3 is a right hand end view thereof; Fig. 4 is across-sectional view taken in line 4.4 of Fig. 1; Fig. 5 is a detailview of a part of the blank feedingnleans; Fig. 6 is an end view of theturret looking from front to rear thereofaand Figs. 7 and 8 are detail,partly sectional, views of the turret and tool slide with this improvedblank feeding means applied thereto and illustrating different positionsthereof.

Similar characters of reference indicate corresponding parts throughoutthe figures ported on the bed 3 of the machine and hav- I ing arotary'turret 4 therein carrying a suit able number of live or rotatingspindles 5, shownhereln as four in number, rotated in Y the usual mannerby gears 6, one on each fed thereto.

spindle, by means of a gear 7 carried on the Patented Sept. 3, 1912.

live spindle shaft 8, which is suitably su'pport-ed at one end in theturret casing and housed at the opposite end in a suitable housing 9carried on the bed of the machine, a. suitable pulley 10 being locatedon the shaft for imparting motion thereto. The turret may be rotated bymeans of "a fan gear 11 in mesh with a segment of teeth 12 carried bythe turret casing, the fan gear being located on-a cam shaft 13supported on the bed of the machine. The turret is looked in positionafter each indexing by suitable lock bolt mechanism 14: actuated by asuitable cam 15 carried on the cam shaft. cam shaft is rotated in anydesired manner, and a conventional means for operating it is shownherein, this comprising a worm wheel 16 mounted on the camshaft andengaged by a worm shaft 17 mounted on the bed of the machine. On thisworm shaft is located a sprocket 18, to which motion is imparted by asprocket chain 19 carried by a sprocket 20 on a transverse shaft 21suitably housed on the bed of the machine, and

which shaft is provided with a bevel gear 22 in mesh with internal teeth23 of the pulley mounted upon the spindle driving shaft. It will beunderstood, of course, that various forms of driving means for thespindle drivin shaft and for the cam shaft may be use as found desirablein practice. The live or rotating spindles of the turret are providedwith chucks 24 cor-- responding to the character of the blanks to befedthereto, and these chucks are suitably operated in the usualmanner'by a chuck operating means, comprising a lever25 actuated byearns 26 carried by a cam drum 27 carried on the cam shaft.

Mountedon the bed of the machine for reciprocatory or sliding movementis a tool slide 28 carryingthe tools, which may consist of a drill,reamer and tap, and this tool slide is reciprocated by means of cams 29carried bya-cam drum 30 on the cam shaft, which cams engage a roll 31carried by a projection 32 depending from the'slide.

Each of the live or rotating spindles of the turret is provided, ashereinbefore stated, with a suitable chuck for the reception' of theblank, the chuck corresponding to the character of the blank which is tobe For instance, if hexagonal blanks are to be fed to the spindles thespindles are provided with hexagon-formed chucks. Each of these chucksis carried by a spindle cap or head 33,the end of which is provided withclutch teeth 34 equally spaced apart on the face of the head, and when ahexagonal blank is to be fedeach cap or head is provided with six clutchteeth, so that theen'dof each-live spindle is thus formed as one memberof a clutch.

In the tool slide is mounted for rotation and for sliding movement withthe tool slide a spindle 35, the face of which is also provided withsimilarly formed teeth to those on the caps or heads of the livespindles and therefore constitutes the other member of the clutch, andthe bore of this sliding spindle is also machined to accord with theshape of the blanks to be fed to the live spindles. In the presentinstance it is shown shaped to receive hexagonal blanks, so that whenthis feeding spindle and the rotating spindle of the turret arein'engagement through the medium of the clutchteeth the bore of thefeeding spindle will be in alinement with the bore of thechuck in thelive spindle. The feeding spindle of the sliding tool carrier is alsonotched to correspond with the number of clutch teeth on the endthereof, and in the present in-I stance six of these notches equallyspaced apart are shown. notches is a spring tensioned detent 38 forholding the feeding spindle in alinement with the blank magazine 39, thebottom of which is machined-t0 conform with the bore of the feedingspindle, and therefore is shown in the present instance as of hexagonformation. This detent, however, permits the rotation of the normallystationary feeding spindle with the live spindle' at the proper time.

Loosely mounted on the feeding spindle, at the rear of the tool slide,is a lever 40, held between suitable tension nuts 42 and 43 and washers44. F or limiting the swinging movement of this lever a pair of stoppins 45 and 46 are housed in the tool slide 28. Connected at one end tothe lever is a spring 56, the opposite end of which is carried by thehead of the tool slide. The magazine 35) hereinbefore referred to isbolted to the tool slide, so that the swinging lever a0 is between thesame and the, tool slide head 48, the bottom of the magazine being inline with the feeding spindle when the latter is not being rotated bythe live spindle and held in position by its locking detent.

For feeding the blanks from the magazine to the feeding spindle suitablefeeding mechanism is provided, which in the present instance comprises afeed rod 50 suitably supported on the bed of the machine and in positionto push a blank from the magazine into the feeding spindle and thus,through intermediate blanks, push a forward blank into the chuck of thelive spindle when the Cooperating with 'thesetwo spindles are inengagement. This rod is operated by a lever 51 suitably mounted on thebed of the machine and swung by means of cams 52 carried on a cam drum53 mounted on the camshaft, the upper end of this lever being crotchedfor the reception of a spool 54 on the end of the feed rod. A suitablecushion spring 55 is located on the feed rod to prevent the breakage ofthe mechanism due to any variation of the blanks during the feedingoperation.

In operation the feeding spindle is charged with blanks from themagazine, from the bottom thereof, through the medium of the feed rod,and on the forward movement of the tool slide it carries the feedingspindle with it so as to bring the clutch teeth thereof into position toengage the similarly formed clutch teeth of one of the live spindleswhich is in alinement at this time with the feeding spindle; whereupon,through the medium of the clutch teeth the rotating or live spindle ofthe turret rotates the feeding spindle so that the two spindles are, asit were, tied together with the bores thereof in proper alinement 'topermit a blank to be fed from one spindle to the other; whereupon, onthe forward movement of the feed rod to push a blank from the magazineinto the feeding spindle this will, through the medium of theintermediate blanks, push the forward blank from the feeding spindleinto the chuckof the'live spindle. As the tool slide is retracted itcarries its feeding spindle away from the live spindle, at which timethe former is stationary, but possibly its bore is not in line with thehexagonal bore of the magazine' To bring the feeding spindle into suchline is the purposeof the lever 40, the tension nuts of which clamp thelever between them just sufficiently to permit the feeding spindle whenit engages the live spindle to swing or carry such lever into positionto have its tail engage the stop pin 45, at which point the lever L0remains until the tool slide is retracted and its feeding spindle isdisconnected from the live spindle, whereupon the lever 40, by means ofthe spring 56 hereinbeforc referred to, is swung toward the oppositestop pin l6, where it is stopped, thus rotating the feeding spindle 'soas to aline its bore with the bore of the magazine, at which time thelocking detent for the feeding spindle enters one of the notches of suchfeeding spindle and holds it in alinement with the bottom of themagazinc and so permits another blank to be forced from the magazineinto the feeding spindle. It will be understood, of course. that after ablank is fed from the feeding spindle to the live spindlc of the turret.on the next indexing of the turret the blank is carried into position tobe operated upon by one of the tools of the tool head slide.

into positiomse that the opposed clutch faces of a live spindle and thenormally stationary .spindle will engage, at which time the blank willbe fed from one spindle to the other in the manner hcreinbeforedescribed, so that when the last tool has completed its operation upon ablank a blank will have been fed from the feeding spindle to the livespindle. This feeding operation will in practice occur in connectionwith a live spindle from which a blank has been previously ejected insome. suitable manner;

as for -instance when a tap is used the tap may be utilized to draw theblank from the spindle so that on the next indexing of the turret theempty spindle chuck will be carried into position to have a blank fedthereto-on the next forward movement of the tool slide head. I

I claim as my invention:

1. In a metal working machine, the combination of a normally rotatingspindle and means for feeding blanks thereto without stopping therotation of such spindle and comprising a normally stationary spindle'carrying simultaneously a series of blanks, meansfor alining the twolspindl'es during the transfer of such blanks from one spindle to theother, and means for successively transferring the blanks from saidblank carrying spindle to the normally rotating spindle.

2. In a metal working machine, the combination of a normally rotatingspindle and means for feeding an angular-formed blank.

thereto without stopping the rotation of such spindle and including anormally'stationary spindle movable toward and from the normallyrotating spindle and carrying a series of blanks simultaneously, meansfor alining the two spindles during the transfer of such. blanks, andmeans through companion blanks to transfer a blank from the blankcarrying. spindle to the normally rotating spindle.

3. In a metal wor bination of a normally rotating spindle and means forfeeding an angular-formed blank thereto without stopping the rotation ofsuch spindle and including a normally sta tionary hollow spindle movabletoward and from the normally rotating spindle and caroperative.

ing machine, the com-.

rying simultaneously a series of blanks, saidspindles having aliningmeans whereby when they are engaged they will rotate together, and meansfor transferring a blank from the hollow spindle to the rotary spindle.

4. In a metal working machine, the combination of a normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and including a normallystationary hollow spindle movable toward and from the normally rotatingspindle, said spindles having clutch faces whereby when they are engagedthey will rotate together, means for pushing blanks from the nor mallystationary hollow spindle to the nor mally rotating spindle andcomprising a? rod, and-means for operating said rod. l

5. In a metal working machine, the com-l bination of a normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and including a normallystationary spindle movable toward and from the normally rotatingspindle, said spindles having'clutch faces whereby when they are engagedthey will rotate together, and means for pushing blanks from thenormally stationary spindle to the normally ro-' tating spindle andcomprising a rod and a magazine having its lower end formed to blanksfrom the magazine to the hollow spindle and thereby feeding, throughintermediate blanks, the foremost blank in the hollow spindle to thenormally rotating spindle. a a

7. In a metal working machine, the combination of a normally rotatingspindle, means for feeding an angular-formed blank thereto withoutstopping the rotation-of such spindle and including a normallystationary. spindle movable toward and from the normally rotatingsplndle, means for alining the two spindles during the'transfer of suchblank, a magazine for supplying blanks to the normally stationaryspindle, and means for alining the bore of the normally stationaryspindle with the magazine at a predetermined time.

8. In' a metal working machine, the combination of a normally rotatingspindle,

ment of the normally stationary spindle from the normally rotatingspindle.

9. In a metal working machine, the combination of a normally rotatingspindle, means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and including a normally sta--tionary spindle movable toward and from the normally rotating spindle,means for alining the ,two spindles during the transfer of such blank, amagazine for supplying blanks to the normally stationary spindle, andmeans for alining the bore of the normally stationary spindle with themagazine at a predetermined time and comprising a spring actuated memberoperative on the movement of the normally stationaryspindle from thenormally rotating spindle.

10. In a metal working machine, the combination of a normally rotatingspindle, means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and including a normallystationary spindle movable toward and from the normally rotatingspindle, means for alining the two spindles during the transfer of suchblank, a magazine for supplying blanks to theinormally stationaryspindle, and means for alining the bore of the i normally stationaryspindle with the magazine at a predetermined time and comprising aspring actuated lever operative on the movement of the normallystationary spindle from the normally rotating spindle.

11. In a metal Working machine, the combination of a normallyrotatingspindle and means for feeding an angular-formed blank theretowithout stopping the rotation of such spindle and including a normallystationary-spindle movable toward and from the normally rotatingspindle, means for alining the two spindles during the transfer of suchblanks, a magazine for supplying blanks to the normally stationaryspindle, means for pushing the blanks from the magazine into thespindle, and means carried by "the spindle for alining such spindle withthe bore of the magazine.

12. In a metal Working machine, the combi.1ation of a normally rotatingspindle and means for feeding an angular-formed blank thereto Withoutstopping the rotation of such spindle and including a normally staspring actuated lever carried by the spindle and stops for limiting themovements of such lever.

13. In a metal working machine, the combination of a normally rotatingspindle and 'means'for feeding an angular-formed blank thereto withoutstopping the rotation of such spindleand including a normally stationaryspindle movable toward and from the normally rotating spindle, means foralining the two spindles during thetransfer of such blank, a magazinefor supplying blanks to the normally stationary spindle, means forpushing the blanks from the magazine into the spindle, and means carriedby the spindle for alining such spindle with the bore of the magazineand comprising a spring actuated lever carried by the spindle and stopsfor limiting the movements of such lever, said normally stationaryspindle having notches located to correspond with the formation of thebore thereof and a spring pressed detent for holdin said spindle inalinement wit-h the bore 0 the magazlne.

ll. In a metal working machine, the combination of a normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and including a. normallystationary spindle movable toward and from the normally rotatingspindle, said spindles having clutch faces whereby when they are engagedthey will rotate together, a magazine for supplying blanks to the boreof the normally stationary spindle, said spindle and magazine havingbores corresponding with each other and with the blank to be fed fromone to the other, means for. pushin blanks from the magazine into thebore of the spindle, means for holding the spindle so that its bore willbe in alinement with the bore of the magazine, and means for alining thespindle bore with that of the magazine.

15. In a metal working machine, the combination of-a normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and including a normallystationary spindle movable toward and from the normally rotatingspindle, said spindles having clutch faces whereby when they are engagedthey will rotate together, a magazine for supplying blanks to the boreof the normally stationary spindle, said spindle and magazine havingbores corresponding with each other and with the blank to be fed fromone to the other, means for pushing blanks from the magazine into thebore of the spindle, mean: for holding the spindle so that its bore willbein alinement with the bore of the magazine, and means for alining thespindle bore with that of the magazine and comprising a spring actuatedlever carried by said spindle and stops for limiting the movementthereof. I

16. In a multiple spindle screw machine, the combination of a rotaryturret having a plurality of normally rotating spindles each havingaclutch face, a sliding tool carrier movable toward and from saidturret, a nor- ,mally stationary spindle carried by said carrier andhaving a clutch-face corresponding to that of the turret spindles, andmeans for pushing a blank from the normally stationary spindle to thenormally rotating spindles at a predetermined time.

17. In a multiple spindle screw machine, the combination of a rotaryturret having a plurality of normally rotating spindles each having aclutch face, a sliding tool carrier movable toward and from said turret,a normally stationary spindle carried by said carrier and having aclutch face corresponding to that of the turret'spindles, a magazinefor'supplying blanks to the normally stationary spindle, and means 'forpushing the blanks therefrom to the normally'stationary spindle at apredetermined time.

18. In a multiple spindle screw machine, the combination of a rotaryturret having a plurality of normally rotating spindles each havingaclutch face, a sliding tool carrier movable toward and from said turret,a normally stationary spindle carried by said carrier and havinga'clutch face corresponding to that of the turret spindles, a magazinefor supplying blanks to the normally stationary spindle, means forpushing the blanks therefrom to the normally stationary spindle at apredetermined time, and means for positioning the normally stationaryspindle at a predetermined time to receive the blanks from the magazine.a 19. In a multiple spindle screw machine, the combination of a rotaryturret having a plurality of normally rotating spindles each havingaclutch face, a sliding tool carrier moving toward and from said turretand carrying a normally stationary spindle hav-' ing a clutch facecorresponding with that of the normally rotating spindles and a borecorresponding with that of the blank to be fed, a magazine carriedby'said tool slide and also having a bore corresponding with that of thenormally stationary spindle, and

a rod for pushing blanks from the magazine into the normally stationaryspindle. 20. In a multiple spindle screw machine,

the combination of a rotary turret having a plurality of normallyrotating spindles 1 each having a clutch face, a sliding tool carriermovable toward and from said turret and carrying a normally stationaryspindle having a clutch face corresponding with those of the normallyrotating spindles and a bore corresponding with that of'the blanks to befed, a magazine carried by said tool slide and also having a borecorresponding with that of the normally stationary spindle, a rod forpushing blanks from the magazine into the normally stationary spin dle,a spring actuated detent for holding the stationary spindle in alinementwith the bore of the magazine,.and means for alining the stationaryspindle with the bore of the magazine at a predetermined time.

21. In a multiple spindle screw machine,

the combination of a rotary turret having a plurality of normallyrotating spindles each having a clutch face, a sliding tool carriermovable toward and from said turret and carrying-a normally stationaryspindle having a clutch face corresponding with those of the normallyrotating spindles and a bore corresponding with that of the blanks to befed, a magazine carried by said tool' slide and also having a borecorresponding with that of the normally stationary spindle, arod forpushing blanks from the magazine into the normally stationary spindle, aspring actuated detent for holding the stationary spindle in alinementwith the bore of the magazine, and means for alining the stationaryspindle ,with the bore of the magazine at a predetermined time and comprising a swinging lever carried by such stationary spindle and stopsfor limiting the movement of such lever.

22. In a metal working machine,'the com bination of a normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and comprising a normallystationary spindle movable toward and from the normally rotatingspindle, a tool slide carrying said spindle, means for alin- V ing'thetwo spindles during the transfer of a blank, and means for pushing ablank from the stationary spindle to the rotary spindle.

23. In a metal working machine, the combination of a normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and comprising a normallystationary spindle movable toward and from the normally rotatingspindle, means for alining the two spindles-during thetransfer of suchblank, a tool slide carrying said spindle, and .a magazine carried bysaid slide for supplying blanks to'the stationary spindle.

24. In a metal working machine, the combination of a normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and comprising a normallystationary spindle movable toward and from the normally rotatingspindle, means for alining the two spindles during the transfer of such;blank, a tool slide carrying said spindle, a magazine carried by saidslide for supplying blanks to the stationary spindle, and means forpushing blanks from the magazine to the stationary spindle.

25. In a metal working machine, the combination of a-normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation .of such spindle and comprising a normallystationary spindle movable toward and from the normally rotatingspindle, means for alining the two spindles during the transfer of suchblank, a tool slide carrying said spindle, a magazine carried by saidslide for supplying blanks to the stationary spindle, means for pushingblanks from the magazine to the stationary spindle, and means forpositioning the stationary spindle with relation to the magazine at apredetermined time.

26. In a metal working machine, the combination of a normally rotatingspindle indexable from one position to another and means for indexingit, a slide movable toward and from the spindle and means for shiftingit, a normally stationary spindle carried by said slide, said spindleshaving coiiperating faces whereby when they are in engagement they willrotate together to permit a blankto be fed from one to the other withoutthe stoppage of the normally rotating spindle, a magazine carried bysaid slide and having a bore corresponding with that of the stationaryspindle, and means for feeding a blank from the magazine to thestationary spindle.

2'2. In a metal working machine, the combination of a normally rotatingspindle indenable fromone position to another and means for indexing it,a slide movable toward and from the spindle and means for shifting it, anormally stationary spindle carried by said slide, said spindles havingcooperating faces whereby when they are in engagement they will rotatetogether to permit a blank to be fed from one to the other without thestoppage of the normally rotating spindle, a magazine carried by saidslide and having a bore corresponding with that of the stationaryspindle, means for feeding a blank from the magazine to the stationaryspindle, and means'for positioning the statienary spindle with relationto the magazine at a predetermined time.

28. In a metal working machine, the combination of a normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and comprising a normallystationary spindle supported for sliding move ment toward and from saidnormally rotating spindle, said spindles having cotiperating faces andsaid stationary spindle having a bore corresponding with the blank to befed, means for rotating the normally rotating spindle and means forshifting the normally stationary spindle, a magazine shiftable with thenormally stationary spindle and having a bore corresponding with that ofsaid spindle, and means for pushing a blank from the magazine into saidstationary spindle when the spindles are in engagement.

29. In a metal working machine, the com bination of a normally rotatingspindle and means for feeding an angular-formed blank thereto withoutstopping the rotation of such spindle and comprising a normallystationary spindle supported for sliding movement toward and from saidnormally rotating spindle, said spindles having cooperating faces andsaid stationary spindle having a bore corresponding with the blank to befed, means for rotating the normally rotating spindle and means forshifting the normally stationary spindle, a magazine shiftable with thenormally stationary spindle and having a bore corresponding with that ofsaid spindle, means for pushing a blank from the magazine into saidstationary spindle when the spindles are in engagement, and means forpositioning the stationary spindle with relation to the magazine at apredetermined time.

30. In a metal working machine, the combination of a normally rotatingspindle adapted to receive and hold a blank to be operated upon, anormally non-rotative hollow spindle for simultaneously carrying aseries of blanks and delivering the same successively to the normallyrotating spindle,

means for efiecting temporarily the coincident rotation of said twospindles on a common axis by the engagement of one with the other priorto the transfer of the blank, and means for feeding a blank from onespindle to the other through the medium of companion blanks.

Signed at Cleveland. in the county of -Cuyahoga and State of Ohio, this7th day of Sept, 1911.

BENJAMIN F. RINDFLEISCH.

Witnesses:

P. F. MELLINGER, I. G. Lon.

